Which of the following molecules is responsible for "runner's high," a good feeling that accompanies long-distance running?
A. Dopamine
B. Epinephrine
C. Endorphin
D. Acetylcholine
Answer: C
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The ventral mesentery that forms the border between the right and left lobe of the liver is called the ________.
What will be an ideal response?
Which correctly describes renin?
A. It is secreted by juxtaglomerular cells in renal afferent arterioles. B. Its secretion is enhanced by high levels of Na+ in the macula densa. C. Its secretion is stimulated by elevated blood pressure in the renal afferent arterioles. D. It acts on the adrenal cortex to stimulate aldosterone secretion. E. It is secreted by the liver in response to low blood pressure.
The chest is superior to the head.
Indicate whether this statement is true or false.
What receptors do the neurosecretory chromaffin cells of the adrenal medulla express?
A) Adrenergic B) Muscarinic cholinergic C) Nicotinic cholinergic D) Glutamatergic